400010444 has 6 divisors (see below), whose sum is σ = 700018284. Its totient is φ = 200005220.

The previous prime is 400010431. The next prime is 400010509. The reversal of 400010444 is 444010004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001302 + ... + 50001309.

It is an arithmetic number, because the mean of its divisors is an integer number (116669714).

Almost surely, 2^400010444 is an apocalyptic number.

It is an amenable number.

400010444 is a deficient number, since it is larger than the sum of its proper divisors (300007840).

400010444 is a wasteful number, since it uses less digits than its factorization.

400010444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100002615 (or 100002613 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 400010444 is about 20000.2610982957. The cubic root of 400010444 is about 736.8127123431.

Adding to 400010444 its reverse (444010004), we get a palindrome (844020448).

The spelling of 400010444 in words is "four hundred million, ten thousand, four hundred forty-four".